43409089620 has 768 divisors, whose sum is σ = 160639718400. Its totient is φ = 9634775040.

The previous prime is 43409089571. The next prime is 43409089693. The reversal of 43409089620 is 2698090434.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 487742536 + ... + 487742624.

It is an arithmetic number, because the mean of its divisors is an integer number (209166300).

Almost surely, 2^43409089620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43409089620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80319859200).

43409089620 is an abundant number, since it is smaller than the sum of its proper divisors (117230628780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43409089620 is a wasteful number, since it uses less digits than its factorization.

43409089620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 43409089620 in words is "forty-three billion, four hundred nine million, eighty-nine thousand, six hundred twenty".